KR0141150B1 - Double wide television control apparatus and embodied double deck vtr and cd-ok system - Google Patents

Abstract

An input / output switching circuit is disclosed for a double deck video tape recorder and a double / wide television receiver integrated with a CD-OK system.

In the double deck video tape recorder and the double / wide television receiver integrated with the CD-OK system according to the present invention, the input / output switching circuit inputs a signal output from a television signal receiver, the first video tape recorder, and the second video tape recorder. By outputting to the television signal receiving unit, the first video tape recorder and the second video tape recorder under the control of the mastermite processor, it is possible to satisfy the various needs of the user and improve the added value of the product.

Description

Double deck video tape recorder and CD-OK system integrated double / wide television set

1 is a block diagram showing the configuration of a double deck video tape recorder and a CD / OK system integrated double / wide television receiver according to the present invention.

2 is a block diagram showing a detailed configuration of the audio / video signal selection unit shown in FIG.

3 is a block diagram showing another configuration of the audio / video signal selection unit shown in FIG.

4 is a block diagram showing a detailed configuration of the double / wide processing unit shown in FIG.

5 is a diagram for conceptually showing the operation of the apparatus shown in FIG.

6 is a block diagram for explaining signal flow of an input / output signal switching circuit in a double deck video tape recorder and a double / wide television receiver integrated with a CD-OK system.

FIG. 7 is a diagram showing a program array logic PAL of the input / output signal switching circuit shown in FIG.

The present invention relates to a television receiver, and more particularly, to a television receiver in which a double deck video tape recorder and a CD-OK system are integrated with a double / wide type television receiver.

The double-deck video tape recorder has a structure in which two video tape recorders are integrated, and each video tape recorder can be played separately. In particular, a video tape recorder records a signal played on one video tape recorder to the other video tape recorder. It has the advantage of being able to perform the so-called copy function.

On the other hand, a double / wide television receiver can display a video signal on a wide screen with an aspect ratio of 16: 9, and split the wide screen from side to side to simultaneously display two video signals from different signal sources. As a television receiver of the display system, the video signal reproduced from an external video player such as a video tape recorder or a laser disc player or a CD-OK can be simultaneously viewed.

When the separate video cassette recorder and CD-OK system are electrically connected to each other via a double / wide type TV and a cable, the video signal received from the television set and the video signal played by the double deck video tape recorder can be simultaneously viewed. Recording the received video signal on the videotape at the same time, or simultaneously watching the signal reproduced from one videotape while recording on the other videotape, or watching the signal reproduced from the video cassette recorder. At the same time, it is easy to assume that various operations such as listening to music or singing songs are possible while watching the background image signal of the CD-OK system.

However, when recording a video signal received from a television receiver through a video tape recorder, first, an external output terminal of the television receiver and an external input terminal of the video tape recorder are connected by a cable, and a television receiver is operated to record. Select a channel to receive the video signal, and operate the video tape recorder to perform the recording mode.

On the contrary, when a video signal reproduced by a video tape recorder is to be viewed through a television receiver, first, an external output terminal of the video tape recorder and an external input terminal of the television receiver are connected, or an RF output terminal of the video tape recorder and an antenna of the television receiver. The input terminal must be connected, the video tape recorder can be operated in the playback mode, and the television receiver must be operated in the external video signal reception mode or the channel 3/4 must be tuned.

In addition, when a video screen of a CD-OK system is to be reproduced through a double / wide television receiver, an external output terminal of the CD-OK system and an external input terminal of a television receiver must be connected.

Since the external I / O terminals of video devices are usually installed on the back of the body, in order to provide an electrical connection between them, it is necessary to take them out of the place where they are installed or to work on the back of the place where they are installed. It is never an easy task.

Even if some electrical connection is maintained between them, the proper results cannot be expected unless the devices are operated in the proper order according to the wishes, and the user may have some degree of skill in manipulating each device. It will cost.

In particular, in order to perform a variety of operations by electrically connecting a double / wide television receiver and a double-deck video tape recorder capable of processing two video signals at the same time, more cables are required than when a typical television receiver and a video tape recorder are connected and used. And highly skilled operation is required.

Therefore, the present invention was created in order to solve the above-mentioned problems, and the double deck video tape recorder and the CD-OK system are integrated into a double / wide television receiver and stored in one body, thereby preventing optimization of the installation space. In addition, to provide a double-deck video tape recorder and a CD / OK integrated double / wide television receiver capable of simply operating and processing a variety of complex operations that can be derived by connecting each device via a cable. The purpose.

In order to achieve the above object, a double deck video tape recorder and a CD / OK system integrated double / wide television receiver according to the present invention comprise at least two tuners for demodulating a broadcast signal propagated from a broadcasting station and providing a composite video signal. A television signal receiver connected dependently to the tuners and having at least two demodulators for demodulating audio / video signals from the composite video signal generated from each tuner; At least two video tape recorders are provided to provide video signals reproduced simultaneously or separately from each video tape recorder, or audio / video signals provided thereto are simultaneously or separately recorded through each video tape recorder, or one video tape recorder is provided. A double deck video tape recorder for recording a video signal provided by the video tape recorder on the other side; A CD-OK system unit which provides a background image and sings or listens to music in accordance with the accompaniment of sound; Left and right picture video signal, left and right picture audio signal, first audio / video signal, second audio / video signal, and third by selectively switching a plurality of video / audio signals provided from the television signal receiver and the double deck video tape recorder. An audio / video signal selection unit providing an audio / video signal; A video signal processor for inputting a left / right screen video signal outputted from the audio / video signal selector to a double / wide process and providing the processed video signal to a driver for driving a display device, and outputting from the audio / video signal selector An audio signal processor that surrounds the left and right screen audio signals and surrounds them, and provides the processed audio signals to the left and right speakers;

A television receiver controller for controlling the television signal receiver, a video signal processor, and an audio signal processor;

A double deck video recorder control unit controlling the double deck video tape recorder; And a master control unit controlling the television receiver control unit and the double deck video tape recorder control unit in response to a control command introduced through a key input unit or a remote control unit.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a schematic configuration of a double deck video tape recorder and a CD / OK system integrated double / wide television receiver according to the present invention.

1 shows an antenna 10, a television signal receiver 12, an audio / video signal selector 14, a video signal processor 16, a CRT driver 18, a CRT 20, an audio signal processor (22), left and right speakers (24, 26), double deck video tape recorder (28), and CD-OK system unit (29).

A television receiver control unit 30, a double deck video tape recorder control unit 32, and a master control unit 34 are provided.

The television signal receiver 12 receives the first and second tuners 120 and 122 and the first and second to generate an intermediate frequency processed video signal by receiving a broadcast signal modulated by a carrier wave introduced through the antenna 10. And first and second demodulators 124 and 126 which input the intermediate frequency processed video signals generated by the tuners 120 and 122 to generate predetermined audio / video signals AV1 and AV2.

The video signal processor 16 is output from the first and second comb filters 160 and 162 and the first and second comb filters 160 and 162 which respectively input the left and right screen video signals and separate them into luminance and chroma signals. A second / wide processing unit 164 and a double / wide processing unit 164 for inputting the first luminance / chromatic signal and the second luminance / chromatic signal and performing double / wide processing to output the third luminance / chromatic signal; A matrix unit 166 for generating a RGB signal by incorporating a three-luminance / chromatic signal into a matrix process is provided.

The double-deck video tape recorder 28 generates the third and fourth audio / video signals or injects the fifth and sixth audio / video signals output from the audio / video signal selector 14 to the video tape. The first and second video tape recorders 280 and 282, the copy control unit 284, and the first and second video tape recorder control units 32 are recorded.

The double deck video tape recorder control unit 32 includes a second microprocessor 320, a second ROM 324, and a third microprocessor 322.

The television receiver control unit 30 includes a first microprocessor 300, a first ROM 302, an OSD 304, and an OSD selection unit 306. That is, the first microprocessor 300 and the first microprocessor 300 controlling the double / wide processor 164, the audio processor 22, and the first OSD 304 under the control of the master microprocessor 340. The OSD control unit 306 includes a first ROM 302, a first OSD 304, and a first OSD and a master 344, which are stored in the control program.

The CD-OK system unit 29 generates the eighth audio / video signal AV8 and inputs it to the audio / video signal selector 14, and outputs the seventh audio / video signal selected from the audio / video signal selector 14. The CD-OK 292 operating by injecting the video signal AV7, the fourth microprocessor 294 controlling the CD-OK 292 under the control of the master microprocessor 240, and the fourth microprocessor 294. 4) includes a fourth ROM 296 containing a control program controlled by the "

The master controller 34 includes a fourth microprocessor 340, a third ROM 342, a master DSD 344, and an input / output signal switching unit 456.

The operation of the apparatus shown in FIG. 1 will be described in detail. The television signal receiving unit 12 demodulates the broadcast signal introduced through the antenna 10 and outputs first and second audio / video signals AV1 and AV2. On the other hand, the double deck video tape recorder 28 outputs the third and fourth audio / video signals AV3 and AV4 reproduced by the respective video tape recorders 280 and 282.

The audio / video signals AV1, AV2, AV3, AV4, and AV8 output from the television signal receiver 12, the double deck video tape recorder 28, and the CD-OK system 29 are connected to the audio / video signal selector ( 14) is provided.

The audio / video signal selector 14 selectively combines a plurality of audio / video signals AV1, AV2, AV3, AV4, AV8 provided on the input side thereof, and the left and right picture video signals, the left and right picture audio signals, and the fifth and the like. Output as a sixth audio / video signal.

FIG. 2 is a block diagram showing a more specific configuration of the audio / video signal selector 14 shown in FIG. The apparatus shown in FIG. 2 includes a video signal selector 140 and an audio signal selector 142.

The video signal selector 140 receives the first to fourth video signals and selectively combines them to output the left and right screen video signals, the fifth video signal, and the sixth video signal.

The pattern of the output video signals is determined by the video signal selection signal output from the television receiver control unit 30 and provided to the video signal selection unit 140.

The audio signal selector 142 injects the first to fourth audio signals, selectively combines them, and outputs the left and right screen audio signals, the fifth audio signal, and the sixth audio signal.

In order to provide the versatility of the device, it may be allowed to further input an externally provided audio / video signal or to output an internally generated audio / video signal to the outside.

FIG. 3 is a block diagram showing another embodiment of the audio / video signal selector shown in FIG. The apparatus shown in FIG. 3 further includes extra audio / video signal input terminals, which may be provided for incoming audio / video signals. As will be appreciated, the combined output of the same number of output signals from more input signals has a greater number of cases, and therefore the number of bits of the audio / video selection signal should be increased.

The video signal processor 16 double / wide processes the left and right picture video signals provided from the audio / video signal selector 14 and outputs the same. In order to display two video signals simultaneously on one screen, it is necessary to adjust the horizontal and vertical scanning periods of the video signals combined with the horizontal scanning period before each video signal is combined. Here, it is assumed that the horizontal and vertical scanners of the two video signals to be combined are the same. Special treatment is required when the horizontal and vertical scan periods are different. This technology is applied to NTSC / PAL, HD / NTSC converter, and so on.

The scan period of the combined video signal is adjusted using a memory. For this purpose, the video signal is separated into a fluoro / color signal, digitally converted and recorded in a memory. By adjusting the read speed of the memory, the scanning period of the output image signal can be determined.

4 is a block diagram showing a more detailed configuration of the double / wide processing unit 164 shown in FIG. The apparatus shown in FIG. 4 includes first and second analog / digital converters 400 and 402, first and second frame memories 404 and 406, first and second write address generators 408 and 410, and read address generation. The unit 412 includes first and second digital / analog converters 414 and 416, left and right screen switching units 418, and a deflection unit 420.

The operation of the apparatus shown in FIG. 4 will be described in detail. The first and second recording address generators 408 and 410 generate recording addresses having recording speeds equal to the scanning speeds of the left and right picture video signals, respectively. The video signals digitally converted by the analog / digital converters 400 and 402 are recorded in the frame memories 404 and 406. At this time, the recording speed in the frame memories 404 and 406 is the same as the scanning speed of the left and right picture video signals, respectively.

The read address generator 412 generates a read address having a read speed corresponding to twice the scanning speed of the left video signal. Therefore, the read speeds in the frame memories 404 and 406 correspond to twice the scanning speeds of the left and right picture video signals, respectively.

The horizontal scanning period of the image signal is divided into two parts of the first half and the second half, and the first half reads the video signal recorded in the first frame memory 404, and the second half reads the video signal recorded in the second frame memory 406. When each video signal is read at twice the recorded speed, the two video signals are combined and output as one video signal.

5 conceptually illustrates write and read operations of the frame memories 404 and 406. As shown in FIG. As shown by the solid line in FIG. 5, each video signal is separately recorded in the frame memories 404 and 406, and the recording speed is equal to the scanning speed of each video signal. After video signals are recorded in the two frame memories 404 and 406, they are sequentially read as shown by the dotted lines, but the read speed is twice the write speed.

As a result, the speed at which each video signal is recorded and the speed at which two recorded video signals are read successively become the same, and a video signal in which the two video signals are combined can be obtained.

The left and right screen switching unit 418 of FIG. 4 inverts the left and right screens on the screen by changing the switching order of signals read out from the first and second frame memories 404 and 406.

The CRT driver 18 of FIG. 1 drives the CRT 20 by the RGB signal output from the video signal processor 16 to display an image signal.

The audio signal processor 22 provides the left and right picture audio signals provided from the audio / video signal selector 14 to the left and right speakers 24 and 26 by performing surround, speaker / headphone selection processing, and the like. Here, the audio signal corresponding to the video signal of the left and right screens is output through the left and right speakers, or the audio signal corresponding to the video signal of the left screen is output to the left and right speakers, and the audio signal corresponding to the video signal of the right screen is output to the headphone output terminal. Selectable operation such as output is possible.

The double deck video tape recorder 28 provides the audio / video signal reproduced by the two video tape recorders 280 and 282 to the audio / video signal selector 14 or is provided by the audio / video signal selector 14. The fifth and sixth audio / video signals are recorded respectively or simultaneously through the respective video tape recorders 280 and 282, or the audio / video signals reproduced by one video tape recorder are recorded through the other video tape recorder.

Here, the first video tape recorder 280 is a VHS video tape recorder, and the second video tape recorder 282 is an 8 mm video tape recorder. Therefore, not only the 8mm tape widely used in movie cameras and the like can be accommodated, but also the 8mm / VHS system can be easily changed.

The television receiver control unit 30 controls the tuners 120 and 122 and the video signal processing unit 16 in response to a command inputted by the operation of the key input unit 34 and the remote control unit 36 or the input / output signal switching unit 346. do. The television receiver control unit 30 generates the first and second tuner control signals T1 and T2 to control the tuning operation of the tuners 120 and 122. By specifying different broadcast channels by each tuner, two channels can be watched at the same time.

Meanwhile, the television receiver control 30 controls the video signal processor 16 by generating a double / wide control signal DB / WIDE and a left / right reverse signal REVERSE.

In the first ROM 302 of the television receiver control unit 30, programs necessary for controlling the television receiver are stored. The first microprocessor 300 performs a control operation by a program recorded in the first ROM 302 and generates a text signal for the user interface through the first OSD 304.

The OSD switching unit 306 selects one of the OSD signal generated by the first OSD 304 or the OSD signal generated by the master control unit 34 and provides it to the driver 18. The CRT driving unit 18 drives the CRT 20 according to a signal in which an OSD signal and an RGB signal superimposed thereon are superimposed.

The double deck video tape recorder control unit 32 includes two microprocessors. One of them is for the first video tape recorder 280 and the other is for the second video tape recorder 282. Here, the microprocessor 322 that controls the second video tape recorder 282 depends on the microprocessor 320 that controls the first video tape recorder 280 to operate. Here, dependent means that it does not work on its own, but depends on something else. That is, the second microprocessor 320 is directly controlled by the master controller 34, but the third microprocessor 322 receives a command from the master controller 34 through the second microprocessor 320 or It is operated by the control of the second microprocessor 320.

This is because the 8mm type second video tape recorder 282 is still less used than the VHS type first video tape recorder 280, and is mainly used for reproducing a signal recorded by a movie camera. This is to reduce the burden on the master controller 34 by allowing the second microprocessor 320 to control the third microprocessor 322 directly from the master controller 34.

The master controller 34 doubles the television receiver control unit 30 so that a predetermined operation is correctly performed in response to an operation command input through the key input unit 36 and the remote control unit 38 or the input / output signal switching unit 346. The deck video tape recorder control unit 32 and the audio / video signal selection unit 14 are controlled.

In the third ROM of the master control unit 34, programs necessary for various types of control are stored. The fourth microprocessor 342 performs a control operation by a program recorded in the third ROM 342, and generates a text signal for the user interface through the second OSD 344.

The master control unit 34 generates an audio / video selection signal AV_SELT signal to control the audio / video signal selection unit so that the video signal processing unit 16, the audio signal processing unit 22, and the double deck video tape recorder 28 are provided. To provide a signal suitable for the desired operation.

The double deck video tape recorder and the double / wide television receiver integrated with the CD-OK system have many input signals and many outputs, so the user interface is emphasized through the OSD so that the user can select the input / output signal properly. do.

Accordingly, a dedicated OSD is installed in the mass control unit 34 to meet the enhanced user interface.

FIG. 6 is a block diagram illustrating the signal flow of the input / output signal switching circuit 346. FIG. 7 shows the input / output signal switching circuit 346 of a double deck video tape recorder and a double / wide television receiver integrated with a CD-OK system. A program array logic (PAL) showing an input / output signal switching relationship is shown.

The double deck video tape recorder and the CD / OK system-integrated double / wide television receiver according to the present invention are controlled by the input and output signals of the input / output signal switching circuit 346 according to the master microprocessor 34). The video signal received at (12) and the video signal reproduced by the double-deck video tape recorder 28 are simultaneously viewed, the received video signal is simultaneously recorded on the video tape, or the signal is reproduced from one video tape. It is possible to perform various operations such as listening to music or singing while simultaneously watching the video signal recorded on the other video tape or watching the signal played back from the video tape recorder while watching the background video signal of the CD-OK system. Do.

6 and 7 show an embodiment of the input / output signal switching circuit 346, which illustrates the signal switching relationship between an 8 mm / VHS double deck video tape recorder and a double / wide television receiver.

The input signal of the input / output signal switching circuit 346 and the place where this signal is switched and output are shown in Table 1, and the operation of Table 1 is shown in Table 2 below. In the input signal switching circuit 346, the arrays 1 to 30 are turned on / off under the control of the master microprocessor 340 to control input / output. The serial numbers in Table 1 represent arrays that are 'turned on' under the control of the master microprocessor 340. That is, number 1 means that array number 1 is 'turned on'.

As described in Table 1 and Table 2 above, there are 14 cases in which there are no external input signals, and 30 user choices are possible when there are 4 external input signals. Serial numbers 2 and 5 are initial states of a double / wide television set (D / W TV).

In addition, when no signal is input to the input / output signal switching circuit 346 or a redundant operation command is input, that is, when there are a plurality of signals input to the input / output signal switching circuit 346, the self-diagnosis function of the master microprocessor 340 is disabled. It works.

For example, an error message is displayed on the screen in the 'turn on' state of a double / wide television set, while a double beep sound is heard while the double deck video tape recorder is operating in a 'turn off' state. To alert the user that an error has occurred.

As described above, in the present invention, a double deck video cassette recorder and a CD-OK system are embedded in a double / wide television receiver, and an A / V system that can control them collectively is implemented to satisfy various needs of users. It has the effect of improving the added value.

In addition, by incorporating a double-deck video tape recorder and a CD-OK system into a double / wide television receiver, it is possible to alleviate the inconvenience of connection and skill required in operation as each device is separately installed.

Claims (2)

In a double / wide type television receiver having an integrated structure of a double-deck video tape recorder CD-OK system, at least two tuners for demodulating a broadcast signal propagated by a broadcasting station and providing a composite video signal, and dependent on the tuners. A television signal reception unit connected to the television unit and having at least two demodulation units for demodulating audio / video signals from the composite video signal generated from each tuner; At least two video tape recorders are provided to provide video signals reproduced simultaneously or separately from each video tape recorder, or audio / video signals provided thereto are simultaneously or separately recorded through each video tape recorder, or one video tape recorder is provided. A double-deck video tape recorder for recording a video signal reproduced by the video recorder through the other video tape recorder; A CD-OK system that provides a background image and sings or listens to music in accompaniment with the sound; Selective switching of a plurality of video / audio signals provided from the television signal receiver and the video tape recorder, the left and right screen video signals, the left and right screen audio signals, the first audio / video signal, the second audio / video signal, and the provided audio. / Video signal selection unit; A video signal processor for inputting the left and right screen video signals outputted from the audio / video signal selector to double / wide processing and providing the processed video signal to a driver for driving a display device; An audio signal processor that surrounds the left and right screen audio signals output from the audio / video signal selector and surrounds the audio signal and provides the processed audio signal to the left and right speakers; A television receiver controller for controlling the television signal receiver, a video signal processor, and an audio signal processor; A double deck video recorder control unit controlling the double deck video tape recorder; And a master control unit for controlling the television receiver control unit and the double-deck video recorder control unit in response to a control command introduced through a key input unit or a remote control unit, and a CD-OK integrated double / wide television receiver. The television signal receiver according to claim 1, wherein the television signal receiver, the first video tape recorder, and the second video tape recorder are input with signals outputted under the control of the master microprocessor. And a double deck video tape recorder and a CD-OK system integrated double / wide television receiver further comprising a tape recorder and an input / output signal switching circuit output to the second video tape recorder.